Unit3ProtectingourselvesGrammarandusageThoughtsonthedesign:本节课首先通过复习Reading，让学生初步感知英语文章是然后发展的。在此基础上，向学生讲解一篇英语文章有哪几部分构成。然后加以归纳，总结，强化学生的感受。在学生能了解的基础上再进行必要的练习。TeachingAims:1.ReviewtheparagraphsinReading.2.Learnthegrammarandusage:thedevelopmentofatext.TeachingProcedures:Step1GreetingsGreetthewholeclassasusual.Step2LeadinLet’sreviewthetextofreadingandanswerthequestions•Howmanyparagraphsarethereinthetext?•Therearetenparagraphs.•Whatisthetitleofthetext?•ThetitleisAidstoday.•Canwelearnwhatthetextisaboutfromthetitle?•Yes.WelearnthatthetextisaboutthedeadlydiseaseofAidsofatthepresenttime.•Ifyouareaskedtodividethewholetextintoseveralparts,howwillyoudivideit?•Wecandivideitintothreeparts.Thefirstpartistheintroductioninthefirstparagraphs.Thesecondpartisthemainbodyandincludesthenexteightparagraphs.Theconclusionisthelastparagraph,andisthelastpart.•Whatisthemainideaofthefirstpart?•ItgivesusanexampletoshowushowseriousthesituationofAidsisinAfrica.•Whatisthesecondpartabout?•IttellsussomedetailedinformationaboutAids.Forexample,whatcausesAids,thewayspeoplegetinfectedwithAids,howseriousthesituationisaroundtheworldandwhattheUNandtheChinesegovernmenthavebeendoingtodealwiththissituation.【设计说明】由于Thedevelopmentofatext是一个学生相对不太注意的环节，但在语文写作课上老师已有所讲解。所以教师在导入的时候先通过Reading让学生初步感受，引发他们的学习热情，为下一步的深入做好必要的铺垫。Step3GrammarThedevelopmentofatextHowisatextdeveloped?Atextshouldbewritteninthewaythatallowsreaderstomovefromoneideatothenexteasily.Foratexttodeveloplogically,weshouldincludethefollowing:•Thetitle•Thebeginningparagraph•Thebodyparagraphs•Theconcludingparagraph.•Whatshouldatitlebelike?•Itshouldnotbetoolongandshouldbeclearandsimple,forexample‘Aidstoday’‘Thesearchofhappiness’‘TheUN-bringingeveryoneclosertogether.’•Howdoyouunderstandthesetitles?•‘Aidstoday’isaboutthedeadlydiseaseofAidsatthepresenttime.•‘Thesearchofhappiness’isabouthowtofindhappiness•‘TheUN-bringingeveryonetogether’isaboutthefunctionsofUN.•Whatshouldbeincludedinthebeginningparagraph?•Itshouldcontainatopicstatement.•Itshouldhavesupportingsentences.•Itshouldcapturereader’sattentionandkeeptheminterestedinreadingthetext.•Eachbodyparagraphusuallycontainsatopicsentence,somesupportingsentencesandaconcludingsentencetotheparagraph.•Whatshouldthetopicsentencebelike?•Thetopicsentencecontainsthemainideaoftheparagraphandshouldbesimpleandclearforreaderstocatchitsmeaning.•Wherecanitbefound?•Itisusuallythefirstsentenceoftheparagraph.•Whataresupportingsentences?•Supportingsentencesfollowthetopicsentenceandprovidedetailsorprooftosupportit.Theyexpandontheideapresentedinthetopicsentence.•Whatisthefunctionofaconcludingsentenceinaparagraph?•Thelastsentenceofaparagraphsometimesintroducesthemainideaofthenextparagraph.•Howdoestheconcludingparagraphfunctioninatext?•Itshouldcontainafinaltopicstatement(ormaybeaprediction),oritcouldrefertotheexamplementionedinthebeginningparagraph.【设计说明】通过具体的讲解让学生明白如何写好一篇英语作文。Step4ConsolidationReadthesentencesandthendecidewhichparagraphtheybelongtoandwhattypeofsentenceeachoneis.【设计说明】通过几个典型例子的呈现来巩固所学内容。Step5Homework根据下列提示，以HowtoStayHealthy（如何保持健康）...
